Bryston SP1.7 Series - Manual (Page 22)

The options available in this menu are:
For LEFT/RIGHT (LR) you can select SMALL OR LARGE
For CENTRE (C) you can select SMALL, LARGE or NONE
FOR SURROUNDS (SUR) you can select SMALL, LARGE or NONE
FOR BACK (BK) you can select NONE, ONE or TWO
FOR SUBWOOFER (SUB) you can select YES or NO
The SP1’s default factory settings as shipped are:
Left/Right = LARGE
Centre = NONE
Surrounds = SMALL
Back = NONE
Subwoofer = YES.
If only one back speaker is chosen, the signal will be present on the BACK LEFT OUTPUT only.
4. Once you have completed selecting the settings that match your particular speaker systems please move the
cursor to the (X) and press SELECT to exit this menu.
NOTE: LARGE VS SMALL SPEAKER SETTINGS:
It is very important that you understand what is meant by the LARGE and SMALL settings in this menu. They
do not refer to SIZE, but to the ability of the particular loudspeaker system to handle low bass/low frequency
information. It is very important that you consult your loudspeaker providers instruction manual or the company
regarding the capabilities of your particular system with regard to low bass/low frequency reproduction. Please
note that all THX certified loudspeaker systems are SMALL since a subwoofer is a part of any THX certified
loudspeaker system. It is strongly recommended that you consider using a subwoofer for any system which you
expect to effectively handle the low frequency dynamics of modern motion picture soundtrack sources such as
DVD or HDTV feeds, and many other discrete multi-channel programming sources. If in any doubt choose
small, especially if you are using a subwoofer, since this will insure that all the appropriate low frequency
information is directed to the subwoofer where it can be most effectively handled.
Explanation of ‘Xtra Bass’ Mode
With any 2-channel material, there is no LFE (Low Frequency Effects, .1 channel) track. So, if your front
speakers are defined as ‘Large’, the subwoofer will be inactive because no bass is being directed there. The
Xbass mode allows the subwoofer to be active, even if the front speakers are full-range. You may find this is
particularly useful for Pro Logic movie soundtracks.
In the Speaker Setup Menu, under the SUB heading, there are 3 choices:
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